Influence of Additional Rotor Resistance and Reactance on the Induction Machine Speed at Field Weakening Operation for Electrical Vehicle Application

This paper presents the influence of additional rotor resistance and reactance on the induction machine speed, at field weakening operation, for electrical vehicle application. For that reason, firstly, the usage and position of electrical machines in electrical vehicle are described. Also, this study shows how to calculate ratio of rotor resistance and reactance for desired maximum stator frequency (speed of field) and vice versa. It is validated that additional rotor resistance can increase induction machine (i.e. electrical vehicle) speed, while additional rotor reactance can decrease induction machine (i.e. electrical vehicle) speed.

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